Sand Reclamation: A Science Of
Sand Reclamation: A Science Of
ON PREVIEW CASSETTE# 97559 A 04.00.00 Pan antique drawing of workmen casting metal in ancient foundries; dissolve to montage of modern workers casting metal; preparing the mold; bags of fresh sand; shakeout of mold to free the casting and collect the sand; rain leaching chemicals from the sand to the environment; catalysts are added to sand for no-bake molding process; workman packs sand in the mold; finished mold is released from its container; super title over a black mold. Chemicals in laboratory; electron micrographs of sand grains mixed with chemical binders which must be removed to reclaim the pure sand; reclaimed grains free of binder; closeup sand pouring into mold; dissolve to ladle of molten metal and pull back to show the casting process. Animated drawing of sand handling process using heat; animated drawing sand washing process. Long shot molten metal pouring into molds. Animated drawing early mortar mill to prepare sand. CU mortar and pestle reclaiming sand by rubbing. Antique advertisement of Sand Cutter equipment to cut foundry costs. Early still photo workers with sand cutter. Dissolve to modern mechanical shakeout of sand after molding; dissolve to Brown and Sharpe foundry, Providence, RI, one of the first (1960) no-bake foundries in the country, with its huge modern foundry; worker moves large dirty casting by monorail onto turntable which goes into a giant blast cabinet. Dissolve to clean casting coming out of the swing-table cabinet. Foundryman Lou Greenslade explains the process as core knockout and sandblasting are performed simultaneously. Dissolve to TRW Mission Casting Facility, Houston, Texas, using furon-bonded no-bake sand in automatic molding lines. Exterior TRW plant and interiors of the casting lines; flaskless molds transferred to cleaning room; moved to 96" double door swing table blast unit, and 28 cubic foot Tumblast unit. Dirty casting goes into the unit; interior shot of mold being blasted (!) and clean castings coming out. Live and animated sequence shows recycling of sand for environmental good. Animation of centrifugal scrubber abrasive wheel, and sand-sand airwash separator. Tilt down sand silos to equipment at base. TRW vice president T. R. Cochran testifies at his desk, with montage summary of the equipment and workmen. Cut to Daigle-Aqua Founderie Montreal, Quebec, Canada. Montage of foundry process. Foundry manager Alain Casano (sp?) comments; montage, dirty castings on door turntable in and clean castings out. LS, sand pours into molds; CU control panel and LS machine. Pan Utah mountains, and exterior Backman foundry, Provo, UT. molding custom cast pipe sections. Elder and Angus Backman, identical twin owners, comment. Before and after shots of huge pipe castings. Aurora Vertiline casting center in City of Industry, California, working with phenolic urethane bonded sand to cast pump parts. Castings in and out of double-door swing table. CU sand fines, organics and metallics separated from reusable sand. Pan laboratory testing equipment as technician removes crucible from oven. Closing montage summary. Huge clean pipe casting comes to camera. Engineers discussing drawings of newer methods for the future. End credits. 650' sound color print on gray metal 800' reel in brown Plio-Magic plastic mailer, labeled. Frink (FFV2) has A & B rolls, track, orig overs, script, still photos, ancillary materials available.